P3D Re: Making Brass Look Old

[roberts@xxxxxxxxxxxxxxxxx (John W Roberts)]

>Date: Wed, 31 Dec 1997 12:33:03 -0700
>From: Sam Smith <3dhacker@xxxxxxxxxxxxx>
>Subject: P3D Making Brass Look Old

>I though I'd ask the panel of experts here for advice again. I want to
>restore an old stereoscope, but I have to make some brass parts from
>scratch. Any ideas as to how to make the new brass look like the old tarnish
>parts?

Remove any protective covering, and wait a few months - that'll take
care of it.

Back in "industrial arts" class in 7th grade, we used a substance called
"liver of sulfur" on sheets of copper. The formulation we used immediately
put a thick, dark coating on the metal. I expect it would have some
effect on brass.
http://www.ganoksin.com/orchid/lwgate/lwgate.cgi/ORCHID/archives/orchid.archive.9610/Subject/article-533.html

John R


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